How does the chord business work in practice
The letter name can be "realized" by playing any note in the chord.
Finding the 3rd and the 5ths from the root.
a 3rd can be a 3rd but an octave higher. (as can any interval)
play along with original 3 violin and a cello version
with a harpsichord or organ is even better. These continuo instruments are what we are imitating when we play an accompaniment with our left hand
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If you find good versions to listen to, and play along with, coupld you post them in the comments, please?